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Calendar family

Far Futures

Our own timeline carried forward. Two of these set their year-zero in our future, so today falls in their deep 'Before' era.

4 worlds

The Spacing Guild forms ~12,000 AD (est.)

Asimov · the Galactic Era begins ~10,000 AD (est.)

Star Trek — Stardate

Federation stardate · year.day

Warhammer 40,000

Imperial Dating · check · fraction · year . millennium (from ~1 AD)